S21 g991u1 xaa usa unlocked how to enable call recording. which csc support?

[pak060]

I have Multi csc oym 

Which country specific carrier support both call recoding and spay.

I am currently in pakistan but my s21 is not g991u which has multi csc own

I have just flashed g991u1 usa unlocked firmware XAA device is usa unlocked unbranded Xaa currently xaa/xaa.xaa/xaa

So which csc support call recoding willing to know 🤔 guys tell me I am curious.

Thanks 😊